Created April 28, 2016 © GPL3+

Ultimate Hardware Expansion Board

Have you ever dreamed of having hundreds of hardware daughter boards that can be added to your FRDM-K82F in minutes? It has come true!

BeginnerProtip1 hour184

Things used in this project

Hardware components

NXP FRDM Board

Fast flexible jack-of-all-trades.

Seeed Studio Grove starter kit plus for Intel Edison

Use Grove Sensors to change your hardware.

MikroE MikroBUS "Click" Daughter Boards

Use these wide range of useful Hardware Daughter Boards!

Digilent - Home of Pmod

Use the Pmod daughter boards to expand your hardware.

Story

The goal of this project is to utilize the power of the FlexIO to expand the number of the hardware daughter boards available to be used with the FRDM-K82F simultaneously. The Grove sensor daughter boards, with 144+ choices and the "click" daughter boards with over 200+ choices, including the 48+ Pmod daughter boards from Digilent, can be controlled by the powerful full featured FRDM-K82F.

The engineer, the tinkerer, the maker of new ideas need to be able to quickly add hardware to their designs.

The final piece of the project will be a PCB board that connects into the FlexIO connector at the bottom of the board and has two MikroBUS slots and six Grove slots. Each of the daughter boards will be controlled using either I2C, SPI or UART. The user will write the unique application for his or her project based on the daughter boards being used, utilizing the SDK provided by NXP.

Close-up

IC1 - MCP3002-CI/SN - 2 channel ADC SPI used by MikroBUS MB1 and MB2, Grove J3 and J4.

U1 and U2 - TX80108PWR - Voltage converter 3.3V and 5V used to allow 3.3V or 5V input/output.

MB1 and MB2 - MikroBUS

(J1 - J6) - Grove connectors

R1, R2, R3 - 10K - PullUps for CS0, CS2, CS1

JP7 - FlexIO from FRDM-K82F

JP2 and JP3 - Pmod2, Pmod1

U$1 - USB 5V input only

IC2 - MCP1700 - +3V3 from +5V from USB

JP4 - Connect if NOT using USB

P1 and P2 - Star - 4 way choose for Pmod1 and Pmod2

LED1 - Lights when +3V3 or +5V is supplied

JP1 - Power Header - choose between +3V3 or +5V

Schematics

Code

Partlist (BOM) exported from C:/EAGLE-7.5.0/projects/examples/FlexIO/K82F/Ultimate Hardware Expansion Board K82F_2.sch at
5/14/2016 2:31 PM

Part Value        Device                          Package       Description                        Part # Digikey/Amazon
C1   1uF          C-US025-025X050                 C025-025X050  CAPACITOR, American symbol           478-7365-1-ND
IC1  MCP3202SN    MCP3202SN                       SO-08         2.7V-5V Dual 12-Bit A/D with SPI     MCP3201-CI/SN-ND
IC2  MCP1700      MCP1700INLINE                   TO92-INLINE   VOLTAGE REGULATOR                    MCP1700-33002E/TO-ND
IC3  MCP23008/SO  MCP23008/SO                     SO18W         MCP23008                             MCP23008T-E/SSCT-ND
J1   Grove I2C R  GROVE-CONNECTOR-DIP-90D(4P-2.0) HW4-2.0-90D   320110034                            1597-1083-ND
J2   Grove I2C R  GROVE-CONNECTOR-DIP-90D(4P-2.0) HW4-2.0-90D   320110034                            1597-1083-ND
J3   Grove An1 R  GROVE-CONNECTOR-DIP-90D(4P-2.0) HW4-2.0-90D   320110034                            1597-1083-ND
J4   Grove An2 R  GROVE-CONNECTOR-DIP-90D(4P-2.0) HW4-2.0-90D   320110034                            1597-1083-ND
J5   Grove TX R   GROVE-CONNECTOR-DIP-90D(4P-2.0) HW4-2.0-90D   320110034                            1597-1083-ND
J6   Grove Data R GROVE-CONNECTOR-DIP-90D(4P-2.0) HW4-2.0-90D   320110034                            1597-1083-ND
JP1  Power        PINHD-1X3                       1X03          PIN HEADER    Gikfun 6 Kinds of 2.54mm Breakaway PCB Board
JP2  Pmod2        PINHD-2X6/90                    2X06/90       PIN HEADER    2x20 PIN 2.54mm Dual Row Right Angle Female
JP3  Pmod1        PINHD-2X6/90                    2X06/90       PIN HEADER    2x20 PIN 2.54mm Dual Row Right Angle Female
JP4  P3V3         PINHD-1X2                       1X02          PIN HEADER    Gikfun 6 Kinds of 2.54mm Breakaway PCB Board
JP7  FlexIO       PINHD-2X9                       2X09          PIN HEADER                  2x20 PIN 2.54mm Dual Row Male
LED1 Green        LEDCHIPLED_0805                 CHIPLED_0805  LED                                  495-1410-1-ND
MB1  MIKROBUS     MIKROBUS                        MIKROBUS      MikroBUS                             1528-1074-ND
MB2  MIKROBUS     MIKROBUS                        MIKROBUS      MikroBUS                             1528-1074-ND
P1   Pmod0        STAR                            STAR          Choose between 4 Lines               Hand Made 5 Male Pins
P2   Pmod1        STAR                            STAR          Choose between 4 Lines               Hand Made 5 Male Pins
R1   10K          R-US_R0805                      R0805         RESISTOR, American symbol            RMCF0805JT10K0CT-ND
R2   10K          R-US_R0805                      R0805         RESISTOR, American symbol            RMCF0805JT10K0CT-ND
R3   10K          R-US_R0805                      R0805         RESISTOR, American symbol            RMCF0805JT10K0CT-ND
R4   330          R-US_R0805                      R0805         RESISTOR, American symbol            RMCF0805JT330RCT-ND
U$1  USB-PWR      USB-PWR                         USB-MINIB                                          WM17115-ND
U1   TX80108PWR   TXB0108PWR                      TSSOP20       8-Bit Bi-Directional Level Shifter   296-21527-1-ND
U2   TX80108PWR   TXB0108PWR                      TSSOP20       8-Bit Bi-Directional Level Shifter   296-21527-1-ND

Credits

Jerry Farmer

1 project • 3 followers

Ultimate Hardware Expansion Board

Things used in this project

Hardware components

Story

Custom parts and enclosures